GeoLane at PTD dot NET wrote in message
...
I called KO Lee (LeBlond) today to find out whether the
right hand
flange had a right or left hand thread. Su-prise! It's a
press fit
and not threaded at all.

John at Leblond looked up the engineering drawing and it
said that the
hole in the flange is drilled and then reamed to 0.624" +0
to -0.001
My spindle measures 0.6250 to 0.6255

Photos here of the removal:

Flange part way off:
http://i749.photobucket.com/albums/x...g?t=1280193138

Spindle with brass cover and flange removed:
http://i749.photobucket.com/albums/x...vedLarge.jp g

That explains why the creator of the brass cover put two
slots at the
end. They were to allow the gear puller to grab the
flange.

The holes on the face of the flange mate with a pin that
is in the
face of the right hand extension that came with the
grinder. They're
not for unscrewing the flange.

I'm thinking that the way to put the flange back on is to
heat it with
a heat gun and slam it on the end of the spindle as
quickly as I can.
Or would I better off heating it hotter with a torch?

RWL

Try this: clean the shaft and the bore with crocus cloth
then take a
heavy block of aluminum and heat _that_ to about 350 to 400
deg
and then put the flange on _it_ to heat it. You can easily
measure the
bore to see if you can get two thou expansion. There's no
use getting
it much hotter as the shaft will absorb heat and may affect
the seal.
You could even have another block of aluminum with a hole so
you
can soak heat away from the flange once in place, if you're
really
picky. ;)) In fact, you could have heated the flange this
way to
remove it without using a puller. Pulling it off cold
affects the
press fit. phil